<div class="row">
  <div class="input-field col s12">
    <!-- Dropdown Trigger -->
    <a id="dropdownActivator" class='dropdown-button btn' href='#' data-activates='dropdown1'>Drop Me!</a>

    <!-- Dropdown Structure -->
    <ul id='dropdown1' class='dropdown-content'>
      <li><a href="#!">one</a></li>
      <li><a href="#!">two</a></li>
      <li class="divider"></li>
      <li><a href="#!">three</a></li>
    </ul>

    <!-- Dropdown Trigger -->
    <a id="dropdownBubble" class='dropdown-button btn' href='#' data-activates='dropdown2'>
      <i class="material-icons left">arrow_drop_down</i>
      <span>Event Bubble!</span>
    </a>

    <!-- Dropdown Structure -->
    <ul id='dropdown2' class='dropdown-content'>
      <li><a href="#!">one</a></li>
      <li><a href="#!">two</a></li>
      <li class="divider"></li>
      <li><a href="#!">three</a></li>
    </ul>
  </div>
</div>